Clasp



s. BUCHSBAUM.

CLASP.

APPLICATION FILED DEC.1, |919- 1,396,01 Patented Nov. 8, 1921.

- WMQ/m UNITED STATES PATENT OFFICE.

SAMUEL BUCHSBAUM, 0F CHICAGO, ILLINOIS.

CLASP.

Application filed December 1, 1919.

To all whom it may concern.'

e it known that I, SAMUEL BUCHSBAUM, a citizen of the United States, residing at hicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Clasps, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

Iy invention relates to clamps or buckles and has to do more particularly with that type of buckle which is adapted to be adjusted along the band to vary the length thereof. That is, to that type in which the buckle is moved along the band or belt to lengthen or shorten it as desired.

It is one of the objects of the invention to produce a simple and effective device of this character which will permit one end of the band to be held with relation to the buckle, yet permitting the buckle to be moved with respect to another portion of the band and to grasp the same to prevent its being moved relative thereto when in adjusted position. The arrangement eliminates the necessity of sewing or otherwise similarly fastening the end of the band to the buckle and yetsuliiciently secures the same so that when the buckle is moved along the band, the end thereof will bemoved with the buckle and consequently cause the length of the band to be varied.

The invention has many applications, and is herein shown as applied to a band for wrist watches and will be explained in this connection, but it is evidentthat same may be applied in other connections.

e invention'will be explained and more readily understood when read in conjunction with the accompanying drawings, in which- Figure 1 is a side wrist band having thereto;

Fig. 2 is a bottom plan view of the arrangement shown in Fig. 1;

Figs. 3 and 4 are respectively an elevation and a section showing in detail the clamp shown in Figs. l and 2, and

Fig. 5 is a plan View thereof.

Inthe embodiment of the invention shown in the drawings, the use of a plate 10 and the clamping members 11 and 12 is contemplated, which coperate to adjustably hold the band 13 with respect thereto. The plate elevation of a watch and the invention applied Specification of Letters Patent.

Patented Nov. 8, 1921. seria1 No. 341,718.

10 has flanges 14 and 15 which are of a suf-A clamping devices will be guarded by the other to prevent its being accidentally operated to release it and the end 16 of the band 13 which it holds. These clamping devices have projections 17, 17 which are inserted 1n apertures 18, 18 provided in the flanges 14 and v15 which form the pivots therefor. The clamping elements 11 and 12 extend from one flange of the plate to the other and are constructed to produce a, lever portion 9 and gripping edge 20. The lever portions thereof extend in opposite directions and overlap each other, but are spaced apart from each other. results in an eX- tremely compact arrangement, which positions the gripping edges near the outer edge ofthe member 10 and permits the band to be readily inserted between the clamping elements, and one clamping element guards the other against being operated until the former is released.

the clamping member 11 and the plate 10 and between both of the clamping members 11 and 12, and thence to and through another eyelet 23 provided upon the watch. This end is then brought back and passed between the clamping element 12 and the plate where and the plate.

Thus it can be seen that when the clamping member 11 is released, the device as a whole may be moved along the band 13 to either increase or shorten the length of the band extending between the eyelets of the watch, and also that when the clamping element 11 is again caused to clamp the band that the desired length of the band may be maintained.

From the foregoing it can readily be seen that the device produces a simple and effec- Y tending `substantially tive arrangement whereby the length of the band may be varied, also that a compact device results in which the possibility of accidentally releasing the band is extremely unlikely.

Having thus described one embodiment of the invention, it is obvious that changes and modifications may be resorted to without departing from the spirit of the appended claims.

. What l claim and ters Patent is:

l. In a clamping device the combination of a base plate, a pair of suitably mounted oppositely extending similar clamping elements, each or said clamping elements having a gripping edge and a clamping lever, the lever of one clamping element extending toward and overlapping the lever of the other clamping element, said overlapping levers extending substantially parallel to each other and one of said levers clamping the other lever between the same and Vsaid base plate to hold said second lever in clamping position.

2. In a clamping device the combination of a base plate having right angularly extending side ilanges, a pair of clamping elements pivotally mounted between said side flanges, said clamping elements being substantial duplicates, each of said clamping elements comprising a gripping portion and a clamping lever, said clamping elements being reversely arranged so that said clamping levers extend toward each other in overlapping relation when in clamping position, the overlapping portions of said levers exparallel to each other whereby the upper of said levers will clamp the lower of said levers between the same and said base plate to hold said lower lever in clamping position.

3. ln a clamping device .the combination of a base plate having right angularly extending Side anges, a pair of clamping desire to cover by Letelements pivotally mounted betweenV said side llanges, said clamping elements being substantial. duplicates, each of said clamping elements comprising a gripping portion and a clamping lever, ments being reversely arranged so that said clamping levers extend toward each other in overlapping relation when in clamping position, the overlapping portions of said levers extending substantially parallel to each other whereby the upper of said levers will clamp the lower of said levers between the same andsaid base plate to hold said lower lever in clamping position` said base plate and clamping levers forming a boxlike element when the same are in clamping position.

il. The combination with a band or flexible material of a. base plate having right angularly extending sideA flanges, a pair of clamping elements pivotally mounted between said side flanges, said clamping elements being substantial duplicates, each of said clamping elements comprising a gripping portion and a clamping lever, said clamping elements being reversely arranged so that said clamping levers extend toward each other in overlapping substantially parallel relation when in clamping position, one of said clamping elements being adapted to grip an end portion of said band between the gripping portion thereof and said base plate and the other of said elements being adapted to grip an intermediate portion of said band without looping said band about any portion of said clamping device, said band extending between said clamping levers, said levers overlappingso as to clamp said band therebetween and the lower lever against saidbase platerto hold said lower lever in clampin position.`

ln witness whereot` hereunto subscribe my name this 28th day o November A. D,

- SAMUEL BUoHsBAUM.

said clamping ele- 

